border-style:groove/ridge/double/inset/outset

<p></p>

1.ridge

 p{
     width: 200px;
     height: 200px;
     border-width: 3px;
     border-style: ridge;
     border-color: #faf;
}

2.groove

 p{
     width: 200px;
     height: 200px;
     border-width: 3px;
     border-style: groove;
     border-color: #faf;
}

3 、double

 p{
     width: 200px;
     height: 200px;
     border-width: 3px;
     border-style: double;
     border-color: #faf;
}

4、inset

 p{
     width: 200px;
     height: 200px;
     border-width: 3px;
     border-style: inset;
     border-color: #faf;
}

5、outset

 p{
     width: 200px;
     height: 200px;
     border-width: 3px;
     border-style: outset;
     border-color: #faf;
}